XRObjectTrackingSubsystemDescriptor.cs
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using System;
#if UNITY_2020_2_OR_NEWER
using UnityEngine.SubsystemsImplementation;
#endif
namespace UnityEngine.XR.ARSubsystems
{
/// <summary>
/// Describes features of an <see cref="XRObjectTrackingSubsystem"/>.
/// </summary>
/// <remarks>
/// Enumerate available subsystems with <c>SubsystemManager.GetSubsystemDescriptors</c> and instantiate one by calling
/// <c>Create</c> on one of the descriptors.
/// Subsystem implementors can register their subsystem with
/// <see cref="XRObjectTrackingSubsystem.Register{T}(string, XRObjectTrackingSubsystemDescriptor.Capabilities)"/>.
/// </remarks>
public class XRObjectTrackingSubsystemDescriptor :
#if UNITY_2020_2_OR_NEWER
SubsystemDescriptorWithProvider<XRObjectTrackingSubsystem, XRObjectTrackingSubsystem.Provider>
#else
SubsystemDescriptor<XRObjectTrackingSubsystem>
#endif
{
/// <summary>
/// Describes the capabilities of an <see cref="XRObjectTrackingSubsystem"/> implementation.
/// </summary>
public Capabilities capabilities { get; private set; }
/// <summary>
/// Describes the capabilities of an <see cref="XRObjectTrackingSubsystem"/> implementation.
/// </summary>
public struct Capabilities : IEquatable<Capabilities>
{
/// <summary>
/// Tests for equality.
/// </summary>
/// <param name="other">The other <see cref="Capabilities"/> to compare against.</param>
/// <returns>`True` if every field in <paramref name="other"/> is equal to this <see cref="Capabilities"/>, otherwise false.</returns>
public bool Equals(Capabilities other) => true;
/// <summary>
/// Tests for equality.
/// </summary>
/// <param name="obj">The `object` to compare against.</param>
/// <returns>`True` if <paramref name="obj"/> is of type <see cref="Capabilities"/> and
/// <see cref="Equals(Capabilities)"/> also returns `true`; otherwise `false`.</returns>
public override bool Equals(object obj) => (obj is Capabilities capabilities) && Equals(capabilities);
/// <summary>
/// Generates a hash suitable for use with containers like `HashSet` and `Dictionary`.
/// </summary>
/// <returns>A hash code generated from this object's fields.</returns>
public override int GetHashCode() => 0;
/// <summary>
/// Tests for equality. Same as <see cref="Equals(Capabilities)"/>.
/// </summary>
/// <param name="lhs">The left-hand side of the comparison.</param>
/// <param name="rhs">The right-hand side of the comparison.</param>
/// <returns>`True` if <paramref name="lhs"/> is equal to <paramref name="rhs"/>, otherwise `false`.</returns>
public static bool operator ==(Capabilities lhs, Capabilities rhs) => lhs.Equals(rhs);
/// <summary>
/// Tests for inequality. Same as `!`<see cref="Equals(Capabilities)"/>.
/// </summary>
/// <param name="lhs">The left-hand side of the comparison.</param>
/// <param name="rhs">The right-hand side of the comparison.</param>
/// <returns>`True` if <paramref name="lhs"/> is not equal to <paramref name="rhs"/>, otherwise `false`.</returns>
public static bool operator !=(Capabilities lhs, Capabilities rhs) => !lhs.Equals(rhs);
}
internal XRObjectTrackingSubsystemDescriptor(string id, Type providerType, Type subsystemTypeOverride, Capabilities capabilities)
{
this.id = id;
#if UNITY_2020_2_OR_NEWER
this.providerType = providerType;
this.subsystemTypeOverride = subsystemTypeOverride;
#else
this.subsystemImplementationType = providerType;
#endif
this.capabilities = capabilities;
}
}
}